package dao;

import pojo.Category;

import java.util.List;

/**
 * Created by Tiler on 2020/11/5
 */
public interface RelationDao {
    public List<Category> selectCategoriesByBid(Integer bookId);
    public Integer deleteCategoriesByBid(Integer bookId);
    public Integer insertBookCategories(Integer bookId, List<Integer> categories);
}
